Home / 808,608.30-1,212,912.45-247,569.90

Finding the Fourth Proportional to 808,608.30, 1,212,912.45 and 247,569.90

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Solution

The fourth proportional to 808,608.30, 1,212,912.45 and 247,569.90 is: 371,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,608.30 : 1,212,912.45 = 247,569.90 : x
  2. Step 2: Convert to fraction form
    808,608.30/1,212,912.45 = 247,569.90/x
  3. Step 3: Cross multiply
    808,608.30x = 1,212,912.45 × 247,569.90
  4. Step 4: Simplify right side
    808,608.30x = 300,280,613,955.26
  5. Step 5: Solve for x
    x = 300,280,613,955.26/808,608.30
  6. Step 6: Final answer
    x = 371,354.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.